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The relationship between match performance indicators and outcome in Australian Football

Version 2 2024-05-30, 15:43
Version 1 2018-10-30, 11:30
journal contribution
posted on 2024-05-30, 15:43 authored by CM Young, Wei LuoWei Luo, P Gastin, J Tran, Dan DwyerDan Dwyer
OBJECTIVES: To identify novel insights about performance in Australian Football (AF), by modelling the relationships between player actions and match outcomes. This study extends and improves on previous studies by utilising a wider range of performance indicators (PIs) and a longer time frame for the development of predictive models. DESIGN: Observational. METHODS: Ninety-one team PIs from the 2001 to 2016 Australian Football League seasons were used as independent variables. The categorical Win-Loss and continuous Score Margin match outcome measures were used as dependent variables. Decision tree and Generalised Linear Models were created to describe the relationships between the values of the PIs and match outcome. RESULTS: Decision tree models predicted Win-Loss and Score Margin with up to 88.9% and 70.3% accuracy, respectively. The Generalised Linear Models predicted Score Margin to within 6.8 points (RMSE) and Win-Loss with up to 95.1% accuracy. The PIs that are most predictive of match outcome include; Turnovers Forced score, Inside 50s per shot, Metres Gained and Time in Possession, all in their relative (to opposition) form. The decision trees illustrate how combinations of the values of these PIs are associated with match outcome, and they indicate target values for these PIs. CONCLUSIONS: This work used a wider range of PIs and more historical data than previous reports and consequently demonstrated higher prediction accuracies and additional insights about important indicators of performance. The methods used in this work can be implemented by other sport analysts to generate further insights that support the strategic decision-making processes of coaches.

History

Journal

Journal of Science and Medicine in Sport

Volume

22

Pagination

467-471

Location

Australia

ISSN

1440-2440

eISSN

1878-1861

Language

English

Publication classification

C Journal article, C1 Refereed article in a scholarly journal

Copyright notice

2018, Sports Medicine Australia

Issue

4

Publisher

ELSEVIER SCI LTD